LM134, LM234, LM334
SNVS746E –MARCH 2000–REVISED MAY 2013
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Typical Applications
*Select R3 = VREF/583μA. VREF may be any stable positive voltage ≥ 2V
Trim R3 to calibrate
Figure 16. Ground Referred Fahrenheit Thermometer
Figure 17. Terminating Remote Sensor for Voltage Output
*Output impedance of the LM134 at the “R” pin is approximately
where R2 is the equivalent external resistance connected from the V− pin to ground. This negative resistance can be
reduced by a factor of 5 or more by inserting an equivalent resistor R3 = (R2/16) in series with the output.
Figure 18. Low Output Impedance Thermometer
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